Apparatus for collecting and settling dust.



' Patented lun 10, I902.

2. H LARSON. APPARATUS FOR COLLECTING AND SETTLING DUST.

A plication filed Mar. 20, 1901 (No Mod eI.)

Wii 5525 THE NORRIS PETERS c0. Punmumu, WASHINGTON. 0 c4 a citizen of the United States, residing at the dust may settle. The discharge-leg 5 at charge sprays of water downwardly in the legs set forth and claimed.

distance below the steam-pipe 8. Said water- UNITED- STATES CHRISTIAN HQ/LARSON,

PATENT OFF CE.

or CHICAGO, ILLINOIS.

SPECIFICATION forming part of Letters Patent No. 701,898, dated June 10', 1902.

Application filed March 20 1901.

To all whom it may concern/.

Be it known that I, CHRISTIAN H. LARSON,

Ohicago,.in the county of Cook and Stateof Illinois, have invented a newand useful Apparatus for Collecting and Settling Dust, of which the following is-a specification.

My invention is an improved apparatus for collecting and settling the dust which arises from grain scourers, elevators, and the like; and it consists in the peculiar construction and combination of devices hereinafter fully In the accompanying drawings, Figure 1 is a diagrammatic elevation, partly in section, of a dust collecting and settling apparatus embodying my'improvements. Fig. 2 is a detail sectional view of the same.

In the embodiment of my invention I provide a trap 1, which is connected to the. exhaust apparatus (indicated at A in Fig. 1) of a grain-sco'urer by a pipe 2, which'leads from the casing 3 of the exhaust-fan to the intakeleg-4 of the trap. The said trap comprises the vertical intake and dischargelegs l 5, which communicate at their lower ends, as at 6, the communicating part 6 forming a trap in which its upper end terminatesin a discharge-hood 7.

A steam-pipe 8 leads from a boiler 01' other 1 pipe is provided on its upper side with a rose or sprayer 11, which is located in the leg 4 in the center thereof and is provided on its lower side with a similar rose or sprinkler 12, which is located in the leg 5. The said roses disthat the dust carriedtherebyis .driven through and wetted by the spray from the" rose 11, and thereby caused to settle, and, moreover, the said steam-jet serves to moisten the finer particles of dust, which might Serial No. 52,033. (No modem pass the spray without becoming moistened thereby, and causes said finer dust particles to settle in thetrap, together with the greater particles and thewater. The precipitates may be withdrawn from time to time as the same accumulate. Such particles as may escape precipitation by the sprayfrom the rose Having thus. described my invention, I

claim 1. A dust collecting and settling apparatus comprising a descending intake-leg, an ascending discharge-leg, and a port 6 establishing communicationbetween said intake and dischargelegs and forming a dust-trap,in combination with pneumatic means to discharge dust into saidintake-leg, means to discharge a steam-jet downwardly in the latter, to precipitatethe fiuerdust particles, and means to spray water downwardly-in said intake leg, atapoint below said steam-jet,through which water spray the dust particles pass, said discharge-leg permitting the escape of the air after the separationof'the dust particles therefrom, substantially as described.

2. Adust collecting and settling apparatus comprising a descending intake-leg, an ascending discharge-leg, and a port 6 establishing communication between said intake and discharge legs and forming a dust-trap,i;n combination with pneumatic means to discharge dust into said intakedeg, means to discharge .a steam-jet downwardly. in the latter to precipitate the finer dust particles, and means to spray water downwardly in said intake-leg,

- at a point below said steam-jet, through which 'water spray the dust particles pass," said discharge-leg permitting the escape, of the air after the separation of the dust particles therefrom, and means to spray water downwardly in said discharge-leg, to arrest such dust particles as may pass the portv 6, sub stantially as described.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses CHRISTIAN Witnesses:

CHARLES ARVESEN, LoUIs C. MACKEL. 

